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37 lines
741 B
Rust
37 lines
741 B
Rust
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use vek::*;
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#[inline(always)]
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pub fn srgb_to_linear(c: Rgba<f32>) -> Rgba<f32> {
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#[inline(always)]
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fn to_linear(x: f32) -> f32 {
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if x <= 0.04045 {
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x / 12.92
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} else {
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((x + 0.055) / 1.055).powf(2.4)
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}
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}
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Rgba {
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r: to_linear(c.r),
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g: to_linear(c.g),
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b: to_linear(c.b),
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a: c.a,
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}
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}
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#[inline(always)]
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pub fn linear_to_srgb(c: Rgba<f32>) -> Rgba<f32> {
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#[inline(always)]
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fn to_srgb(x: f32) -> f32 {
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if x <= 0.0031308 {
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x * 12.92
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} else {
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x.powf(1.0 / 2.4) * 1.055 - 0.055
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}
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}
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Rgba {
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r: to_srgb(c.r),
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g: to_srgb(c.g),
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b: to_srgb(c.b),
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a: c.a,
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}
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}
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